How do you know if a compound is more soluble in water?
Table of Contents
- 1 How do you know if a compound is more soluble in water?
- 2 How can you predict the solubility of organic compounds?
- 3 How do you determine the solubility of a compound?
- 4 How can you predict whether a compound is soluble or insoluble in water?
- 5 How do you know if a compound is aqueous or solid?
- 6 What makes compounds soluble in water?
How do you know if a compound is more soluble in water?
To predict whether a compound will be soluble in a given solvent, remember the saying, “Like dissolves like.” Highly polar ionic compounds such as salt readily dissolve in polar water, but do not readily dissolve in non-polar solutions such as benzene or chloroform.
How can you predict the solubility of organic compounds?
If the solvent is polar, like water, then a smaller hydrocarbon component and/or more charged, hydrogen bonding, and other polar groups will tend to increase the solubility. If the solvent is non-polar, like hexane, then the exact opposite is true.
How do you determine the solubility of a compound?
How to Use Solubility Rules
- Identify the compound whose solubility you want to check. It can be helpful to write out the empirical formula so you can identify the ions that make up the compound.
- Look up each ion in the solubility rules.
- Alternatively, you can look up ions in the solubility chart.
How do you know which compound is least soluble in water?
– To find the least soluble substance at a given temperature we follow the temperature line up and the first substance curve we hit is the least soluble. For most soluble it is the same proceedure except the last substance curve hit is the most soluble.
Which compound has the highest solubility in water?
Water (H2O) is a polar molecule that exhibits hydrogen bonding, so the most soluble solute would be a polar compound that exhibits hydrogen bonding.
How can you predict whether a compound is soluble or insoluble in water?
In water, the molecules of the compounds are soluble and so they would dissociate into their ionic forms. Therefore, if the ions would dissociate then, they are soluble in the solvent otherwise, they are insoluble.
How do you know if a compound is aqueous or solid?
You can usually tell if something is solid or gas by looking through the problem you are doing (it is normally given) and it is usually marked on the periodic table. You can determine if a solution is aqueous if you see that it is being dissolved in water or if ions/precipitates are involved in a problem.
What makes compounds soluble in water?
When polar compounds or ions are added to water, they break up into smaller components, or dissolve, to become part of the solution. The water’s partial charges attract different parts of the compound, making them soluble in water.
What is a rule of thumb for predicting the solubility of organic compounds in water?
The general rule of thumb is that each polar group (groups containing nitrogen or oxygen) will allow up to 4 carbons to be soluble in water.
What compounds are soluble in water?
Solubility Rules
| Soluble in Water | Important Exceptions (Insoluble) |
|---|---|
| All Group IA and NH4+ salts | none |
| All nitrates, chlorates, perchlorates and acetates | none |
| All sulfates | CaSO4, BaSO4, SrSO4, PbSO4 |
| All chlorides, bromides, and iodides | AgX, Hg2X2, PbX2 (X= Cl, Br, or I) |